Q Corresponding MELSECNET/H Network System

Transcription

1 Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O network) Mitsubishi Programmable Logic Controller QJ71LP21 QJ71LP21-25 QJ71LP21S-25 QJ71LP21G QJ71LP21GE QJ71BR11 QJ72LP25-25 QJ72LP25G QJ72LP25GE QJ72BR15

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3 SAFETY PRECAUTIONS (Always read these instructions before using this equipment.) Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full attention to safety to handle the product correctly. The instructions given in this manual are concerned with this product. For the safety instructions of the programmable controller system, please read the CPU module user's manual. In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".! DANGER Indicates that incorrect handling may cause hazardous conditions, resulting in death or severe injury.! CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in medium or slight personal injury or physical damage. Note that the! CAUTION level may lead to a serious consequence according to the circumstances. Always follow the instructions of both levels because they are important to personal safety. Please store this manual in a safe place and make it accessible when required. Always forward it to the end user. [Design Precautions]! DANGER When the network develops a communication error, the station with the communication error will enter into the following status. Use the communication status data to form an interlock circuit in the sequence program that will operate the system on the safe side. Erroneous output or malfunctioning could cause accidents. (1) The remote master station will hold the data from before the communication error. (2) The remote I/O station turns off all outputs. The output module of the remote I/O station can clear/hold the output status at the time of error by using the remote I/O module parameters. As the parameters are set to "clear" by default, the output module turns off the outputs at the time of error. If it is required to hold the output in order to operate the system safely, set the parameters to "hold". If a coaxial cable is disconnected, this may destabilize the line, and a data link communication error may occur in multiple stations. Make sure to create an interlock circuit in the sequence program so that the system will operate safely even if the above error occurs. Failure to do so may result in a serous accident due to faulty output or malfunctions. A - 1 A - 1

4 [Design Precautions]! DANGER When performing control operations to a PLC (modifying data) in operation by connecting GX Developer to the CPU module or connecting personal computers to the intelligent functional modules, configure an interlocking circuit in a sequence program so that the safety of the overall system is maintained. Also, before performing other control operations (program modifications and operating status modifications (status control)) on the PLC in operation, be sure to read the manual thoroughly and confirm the safety. Especially if the above mentioned control operations are performed from an external device to a remote PLC, problems arising on the PLC side may not be dealt with immediately due to abnormal data communication. Thus, in addition to configuring an interlocking circuit in a sequence program, determine how the system should handle data communication errors between the PLC CPU and external devices.! CAUTION Always reset the CPU module after changing the parameters for the CPU module or the remote I/O module. If this is not done, data from before the change could cause malfunctioning. Do not bundle the control wires and communication cables with the main circuit or power wires, or install them close to each other. They should be installed at least 100 mm (3.94 in.) away from each other. Failure to do so may generate noise that may cause malfunctions. [Installation Precautions]! CAUTION Use the PLC in the operating environment that meets the general specifications described in the user's manual for the CPU module used. Using the PLC in any other operating environments may cause electric shocks, fires or malfunctions, or may damage or degrade the product. While holding the module mounting lever at the bottom of module, insert the module fixing tab into the fixing hole in the base unit. Then secure the module using the module fixing hole as a support point. Incorrect mounting may cause malfunctions, a failure or a drop of the module. In an environment of frequent vibrations, secure the module with the screw. Tighten the screw within the specified torque range. If the screw is too loose, it may cause a drop of the module, a short circuit or malfunctions. If too tight, it may damage the screw and/or the module, resulting in a drop of the module, a short circuit or malfunctions. Completely turn off the externally supplied power used in the system before mounting or removing the module. Failure to do so may damage the product. For remote I/O stations of function version D or later, online module change can be performed. However, the modules which can be replaced online are limited, and replacement procedures are determined for each module. For details, refer to the section of online module replacement in this manual. A - 2 A - 2

5 [Installation Precautions]! CAUTION Do not directly touch the conducting parts and electronic parts of the module. This may cause the module to malfunction or fail. [Wiring Precautions]! DANGER Completely turn off the externally supplied power used in the system when installing or placing wiring. Failure to do so may cause electric shocks or damage the product.! CAUTION Be sure to ground the FG terminals independently for PLC by class D (class 3) or higher. Failure to do so may cause malfunctions. When connecting cables to the terminal block for external power supply, check the rated voltage and terminal layout of the product for correct wiring. Connecting a cable to power supply of different rating or incorrect wiring may cause a fire or fault. Tighten the terminal screws with the specified torque. Loose tightening may lead to a short circuit, fire or malfunction. Solder coaxial cable connectors properly. Incomplete soldering may result in malfunctioning. Be careful not to let foreign particles such as chaff and wire chips get inside the module. They may cause a fire, mechanical breakdown or malfunction. The top surface of the module is covered with a protective film to prevent foreign objects such as wire chips from entering the module during wiring work. Do not remove this film until all the wiring work is complete. Before operating the system, be sure to remove the film to provide adequate heat ventilation. Make sure to place the communication and power cables to be connected to the module in a duct or fasten them using a clamp. If the cables are not placed in a duct or not fastened with a clamp, their positions may become unstable and may move, or they may be pulled inadvertently. This may damage the module and the cables or cause the module to malfunction because of faulty cable connections. When disconnecting the communication and power cables from the module, do not pull the cables by hand. When disconnecting a cable with a connector, hold the connector to the module by hand and pull it out to remove the cable. When disconnecting a cable connected to a terminal block, loosen the screws on the terminal block first before removing the cable. If a cable is pulled while being connected to the module, it may cause the module to malfunction or damage the module and cables. A - 3 A - 3

6 [Setup and Maintenance Precautions]! CAUTION Please read this manual thoroughly and confirm the safety enough before starting online operations (especially, program modifications, forced outputs, and operating status modifications), which are performed by connecting GX Developer via the MELSECNET/H network system to a CPU module running on another station. Performing incorrect online operations may damage the machinery or result in accidents. Never disassemble or modify the module. This may cause breakdowns, malfunctions, injuries or fire. Use any radio communication device such as a cellular phone or a PHS phone more than 25cm (9.85 inch) away in all directions of the PLC. Not doing so can cause a malfunction. Completely turn off the externally supplied power used in the system before mounting or removing the module. Failure to do so may damage the module or result in malfunctions. For the remote I/O network systems of function version D or later, online module change can be performed. However, the modules which can be replaced online are limited, and replacement procedures are determined for each module. For details, refer to the section of online module replacement in this manual. Do not mount/remove the module onto/from base unit more than 50 times (IEC compliant), after the first use of the product. Failure to do so may cause the module to malfunction due to poor contact of connector. Do not touch the terminals while the power is on. This may cause breakdowns, malfunctions, injuries or fire. Switch off all phases of the externally supplied power used in the system when cleaning the module or retightening the terminal or module mounting screws. Failure to completely shut off all phases of the external power supply may cause module breakdowns and malfunctions. If the screws are loose, it may cause the module to short-circuit, malfunction or fall off. If the screws are tightened excessively, it may damage the screws and cause the module to short circuit, malfunction or fall off. Before handling the module, always touch grounded metal, etc. to discharge static electricity from the human body. Failure to do so can cause the module to fail or malfunction. [Disposal Precautions]! CAUTION When disposing of this product, treat it as industrial waste. A - 4 A - 4

7 REVISIONS Print Date Manual Number Revision Oct., 2000 SH (NA) A First printing May., 2001 SH (NA) B Model addition The manual number is given on the bottom left of the back cover. QJ71LP21G, QJ72LP25G, QJ71LP21GE, QJ72LP25GE Correction Product Components, About The Generic Terms And Abbreviations, Chapter 1, Section 1.2, 2.4, 3.1.1, 3.1.2, 3.2.1, 3.2.2, 3.3.2, 4.2.1, 4.2.2, 4.8.2, Chapter 5, Section 5.1.5, 5.2.1, 6.1.2, 6.2.1, 6.3, 6.4, 7.1.1, 7.8, 8.1, 8.1.1, 8.1.4, 8.3.1, 8.3.2, Appendix 2, 3, 4, 5, Index Addition Apr., 2002 Section SH (NA) C Correction Section 1.2, 1.3, 2.3.1, 2.3.2, 2.3.3, 2.5, 3.1.1, 3.1.2, 3.2, 3.3.2, 4.2.1, 6.1.1, 6.4, Chapter 7, Section 8.4, Appendix 2, 3 Changed item numbers Section 2.3 Section 2.4, Section 2.4 Section 2.5 Addition Section 7.10 Nov., 2002 SH (NA) D Model addition QJ71LP21S-25 Correction SAFETY PRECAUTIONS, CONTENTS, Generic Terms And Abbreviations, Product Components, Section 1.1, 1.2, 3.1.1, 3.1.2, 4.1.2, 4.8.1, 4.8.2, 7.1.1, 8.1.4, Appendix 2, 3 Apr., 2003 SH (NA) E Correction SAFETY PRECAUTIONS, About Manuals, Section 1.2, 2.1.2, 2.2.2, 2.3.2, 2.5, 3.1.1, 3.1.2, 3.2.2, 3.3.1, Chapter 5, Section 5.1.3, 5.1.5, 6.2, 6.3, 6.4, 6.5, 8.1, 8.2, 8.2.1, 8.2.5, A - 5 A - 5

8 Print Date Manual Number Revision Jun., 2004 SH (NA) F Correction The manual number is given on the bottom left of the back cover. SAFETY PRECAUTIONS, Manuals, Generic Terms And Abbreviations, Section 1.2, 2.1.2, 2.2.2, 2.3.2, 2.4.2, 2.5, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.2, 3.2.2, 4.2.2, 4.9.1, 4.10, , , , Chapter 5, Section 5.1.1, 5.2, 5.2.1, 6.4, 6.5, Chapter 7, Section 8.1, 8.1.1, 8.1.2, 8.1.3, 8.1.4, 8.2.1, 8.2.3, 8.2.5, 8.2.7, 8.3.1, 8.3.2, Appendix 2, 3 Addition Section 1.4, 2.4, 2.7, 3.3.3, 3.3.4, 7.11, 7.12, 8.2.7, Appendix 7 Changed section No. Mar., 2005 Section 2.4 Section 2.5, Section 2.5 Section 2.6 SH (NA) G Correction Safety Precautions, Conformation to the EMC Directive and Low Voltage Instruction, Product Configuration, Section 1.1, 1.2, 2.6, 2.7, 3.1.1, 3.1.2, 3.1.4, 3.2.2, 3.3.2, 4.2.1, 4.2.2, 4.3, 4.4, 4.8.1, 4.8.2, 4.9.1, , 5.1.4, 6.1.1, 6.2, 6.2.2, 6.3, 7.4, 8.1, 8.1.2, 8.1.3, 8.2, 8.2.1, 8.3.1, 8.3.2, Appendix 2, 3, 4, 5, 7 Addition Sep., 2005 Section SH (NA) H Correction Generic Terms And Abbreviations, Section 1.2, Section 2.5, Section 3.2, 3.2.2, 3.3.2, Section 5.1.5, 5.2.1, Section 6.3, 6.5, Section 7.12, Section 8.2, 8.2.5, 8.3.1, 8.3.2, Appendix 3, 4, 5 May, 2006 SH (NA) I Correction Generic Terms And Abbreviations, Section 1.1, Chapter 2, Section 2.2.1, 2.5, 3.1.1, 3.1.4, 4.2.1, 4.2.2, 5.1.3, 5.1.4, 5.1.5, 6.3, 6.4, 7.1.1, 8.1.2, 8.3.2, Appendix 5 Addition Section 2.5.1, Japanese Manual Version SH L This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual MITSUBISHI ELECTRIC CORPORATION A - 6 A - 6

9 INTRODUCTION Thank you for purchasing the series PLC. Before using the equipment, please read this manual carefully to develop full familiarity with the functions and performance of the Q series PLC you have purchased, so as to ensure correct use. Please forward a copy of this manual to the end user. CONTENTS SAFETY PRECAUTIONS...A- 1 REVISIONS...A- 5 CONTENTS...A- 7 Manuals...A-11 Conformation to the EMC Directive and Low Voltage Instruction...A-11 Generic Terms And Abbreviations...A-12 Product Components...A-13 1 OVERVIEW 1-1 to Overview Features Abbreviations Used in the Text, Tables and Diagrams of This Manual Functions Added/Changed with Upgrade to Function Version D SYSTEM CONFIGURATION 2-1 to Single Remote I/O Networks Configuration Setting items Available device ranges Multiple Remote I/O Network (QnPHCPU Only) Configuration Setting items Available device ranges Multiplexed Remote I/O Network for Redundant System (QnPRHCPU Only) Configuration Setting items Available device ranges Multiple Remote I/O Network Configuration Setting items Available device ranges Applicable Systems Applicable systems for remote master stations Applicable systems for remote I/O stations When Using a Multiple CPU System Checking Function Version and Serial No A - 7 A - 7

10 3 SPECIFICATIONS 3-1 to Performance Specifications Optical loop system performance specifications Coaxial cable system performance specifications Optical fiber cable specifications Coaxial cable specifications Function Specifications Cyclic transmission function (Periodic communication) (1) Communicating with input/output module (2) Communicating with intelligent function module RAS functions (1) Output reset function for communication errors (2) Automatic return function (3) Loopback function (Optical loop system) (4) Station detach function (Coaxial bus systems) (5) Transient transmission enabled even at CPU module error (6) Checking the transient transmission abnormal direction time (7) Diagnostic functions (8) Redundant power supply on a remote I/O station (9) Online module change in a remote I/O station Link Data Send/Receive Processing Time Specifications Link data send/receive processing Transmission delay time Switching time from the multiplexed remote master station to the multiplexed remote sub-master station in a multiplexed remote I/O network Output holding time during system switching in the multiplexed remote I/O network for redundant system SETUP AND PROCEDURES BEFORE STARTING THE OPERATION 4-1 to Procedures Before Starting the Operation Network Module Names and Settings QJ71LP21, QJ71LP21-25, QJ71LP21G, QJ71LP21GE, QJ71BR11 (Remote master station) QJ72LP25-25, QJ72LP25G, QJ72LP25GE, QJ72BR Installing and Uninstalling the Module Stopping the CPU (Unintentional Output Prevention) Checking the Input Power Supply Voltage Powering On Checking the on status of the POWER LED of the power supply module Checking the on status of the RUN LED of the network module Standalone Check of the Network Module (Offline Tests) Self-loopback test Internal self-loopback test Hardware test Cable Connections Optical loop system Coaxial bus system Offline Tests from GX Developer A - 8 A - 8

11 4.9.1 Forward loop/reverse loop test (Remote master station only) Network Diagnostics from GX Developer (Online Tests) Loop test (optical loop system only) Setup confirmation test Station order check test (optical loop system only) Communication test PARAMETER SETTINGS 5-1 to Remote Master Station Parameter Setting Setting the number of module cards (Network type) Network settings (1) Starting I/O No (2) Network No (3) Total (slave) stations (4) Group No. (Can be set for multiplexed remote master station/multiplexed remote sub-master station only) (5) Mode (6) Parameter setting example Common parameter (1) LX/LY setting (2) LB/LW setting (3) Reserved station designation (4) Remote sub-master station Supplemental settings Network refresh parameters Valid Module During Other Station Access Redundant settings Remote I/O Station Parameter Settings Remote I/O station possible parameter settings PROGRAMMING 6-1 to Programming Precautions Interlock related signals Program example Cyclic Transmission bit data guarantee Block guarantee of cyclic data per station Communication Between Input/Output Module and Intelligent Function Module Dedicated Link Instruction List Using the Link Special Relays (SB)/ Link Special Registers (SW) APPLICATION FUNCTIONS 7-1 to Transient Transmission Function (Non-Periodical Communication) Dedicated link instruction (1) Reading/writing remote I/O station intelligent function module buffer memory (REMFR/REMTO) Remote I/O Station System Monitor A - 9 A - 9

12 7.3 Device Test for Remote I/O Station Multiplex Transmission Function (Optical Loop System) Return Sequence Station Number Setting Function Reserved Station Function Interrupt Settings I/O Assignment Function Stopping/Restarting the Cyclic Transmission and Stopping Link Refreshing (Network Test) Multiplexed remote master function (QnPHCPU only) Multiplexed remote master function for redundant system (QnPRHCPU only) Backup function of master operation on system switching between control system and standby system Master operation by the station that has started up as the control system System switching request function of control system Access function by specifying either the control system or standby system Remote password TROUBLESHOOTING 8-1 to Network Diagnostics (Network Monitor) Host information Other station information Network monitor details Error history monitor Troubleshooting Items to be checked first When data link cannot be executed on the entire system When data link is disabled because of reset or power off of each station When a specific-station's data link cannot be executed When the transmission and reception data are abnormal When the dedicated link instruction is not completed When a multiplexed remote I/O network for the redundant system does not operate normally When checking for reversely inserted fiber-optic cables online Error Codes MELSECNET/H error code list Error codes corresponding to CPU module detected on remote I/O station H/W Information APPENDIX App- 1 to App-50 Appendix 1 Precautions when Changing Over from a MELSECNET/10 Remote I/O Network to a MELSECNET/H Remote I/O Network...App- 1 Appendix 2 Link Special Relay (SB) List...App- 3 Appendix 3 Link Special Register (SW) List...App-11 Appendix 4 Special Relay (SM) for Remote I/O Modules List...App-28 Appendix 5 Special Register (SD) for Remote I/O Module List...App-31 Appendix 6 Discontinued Models that can be Mounted on Remote I/O Stations...App-44 Appendix 7 External Dimensions...App-45 INEDX Index- 1 to Index- 2 A - 10 A - 10

13 Manuals The following manuals are also related to this product. In necessary, order them by quoting the details in the tables below. Related Manuals Manual Name Q Corresponding MELSECNET/H Network System Reference Manual (PLC to PLC network) This manual describes the specifications for a MELSECNET/H network system for PLC to PLC network. It explains the procedures and settings up to operation, setting the parameters, programming and troubleshooting. (Sold separately) QCPU User's Manual (Hardware Design, Maintenance and Inspection) This manual provides the specifications of the CPU modules, power supply modules, base units, extension cables, memory cards and others. (Sold separately) QCPU User's Manual (Function Explanation, Program Fundamentals) This manual explains the functions, programming methods, devices and so necessary to create programs with the QCPU. (Sold separately) QCPU User's Manual (Multiple CPU System) This manual explains the multiple CPU system overview, system configuration, I/O numbers, communication between CPU modules, and communication with the I/O modules or intelligent function modules. (Sold separately) QnPRHCPU User's Manual (Redundant System) This manual explains the redundant system configuration, functions, communication with external devices, and troubleshooting for redundant system construction using the Redundant CPU. (Sold separately) GX Developer Version 8 Operating Manual This manual describes the programming, printing, monitoring and debugging procedures, and other online functions using GX Developer. (Sold separately) Manual Number (Model Code) SH (13JF92) SH ENG (13JR73) SH ENG (13JR74) SH ENG (13JR75) SH ENG (13JR76) SH E (13JU41) Conformation to the EMC Directive and Low Voltage Instruction When incorporating the Mitsubishi PLC into other industrial machinery or equipment and keeping compliance with the EMC and low voltage directives, refer to Chapter 3 "EMC Directive and Low Voltage Instruction" of the User s Manual (Hardware) for the CPU module used or the PLC CPU supplied with the base unit. The CE logo is printed on the rating plate of the PLC, indicating compliance with the EMC and low voltage directives. For making this product compliant with the EMC and low voltage directives, please refer to Section "Cable" in Chapter 3 of the above-mentioned user s manual. A - 11 A - 11

14 Generic Terms And Abbreviations Generic term/abbreviation QJ71LP21 QJ71BR11 QJ72LP25 QJ72BR15 Master module Remote I/O module Network module Ethernet module Serial communication module MELSECNET/H MELSECNET/10 QCPU QnCPU QnHCPU QnPHCPU QnPRHCPU QnACPU ACPU AnUCPU Q3 B Q3 SB Q3 RB Q5 B Q6 B Q6 RB QA1S6 B Q6 P Q6 RP GX Developer GX Configurator Tracking cable Description of generic term/abbreviation This is an abbreviation for a QJ71LP21, QJ71LP21-25, QJ71LP21S-25, QJ71LP21G, QJ71LP21GE MELSECNET/H network module. However, especially in cases to show different models, QJ71LP21, QJ71LP21-25, QJ71LP21S-25, QJ71LP21G and QJ71LP21GE are printed. Abbreviation for QJ71BR11 type MELSECNET/H network module. Abbreviation for QJ72LP25-25, QJ72LP25G, QJ72LP25GE MELSECNET/H network module. However, especially in cases to show different models, QJ72LP25-25, QJ72LP25G and QJ72LP25GE are printed. Abbreviation for QJ72BR15 MELSECNET/H network module. General term for QJ71LP21 and QJ71BR11. General term for QJ72LP25 and QJ72BR15. General term for master module and remote I/O module. Abbreviation for QJ71E71-100, QJ71E71-B5, and QJ71E71-B2 Ethernet interface modules. Abbreviation for QJ71C24N, QJ71C24N-R2, QJ71C24N-R4, QJ71C24, and QJ71C24- R2 serial communication modules. Abbreviation for Q series MELSECNET/H network system. Abbreviation for AnU series MELSECNET/10 network system and QnA/Q4AR series MELSECNET/10 network system Abbreviation for Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU, Q12PHCPU, Q25PHCPU, Q12PRHCPU, Q25PRHCPU. Abbreviation for Q02CPU. Abbreviation for Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU. Abbreviation for Q12PHCPU, Q25PHCPU. Abbreviation for Q12PRHCPU and Q25PRHCPU modules. Generic term for na series CPU modules. Generic term for MELSEC-A series CPU modules. Generic term for MELSEC-A series A2UCPU, A2UCPU-S1, A3UCPU, A4UCPU, A2USCPU, A2USCPU-S1, and A2USHCPU-S1 CPU modules. Generic term for Q33B, Q35B, Q38B and Q312B main base units. Generic term for Q32SB, Q33SB and Q35SB slim type main base units. Generic term for Q38RB main base units for the redundant power supply system. Generic term for Q52B and Q55B extension base units. Generic term for Q63B, Q65B, Q68B and Q612B extension base units. Generic term for Q68RB extension base units for the redundant power supply system. Generic term for QA1S65B and QA1S68B extension base units. Generic term for Q61P, Q61P-A1, Q61P-A2, Q62P, Q63P and Q64P power supply modules. Generic term for Q61P, Q63RP and Q64RP power supply modules for the redundant power supply system. Abbreviation for GX Developer software package. Abbreviation for GX Configurator software package. Abbreviation for QC10TR and QC30TR tracking cables. A - 12 A - 12

15 Product Components Model name Part name Quantity QJ71LP21 QJ71LP21 MELSECNET/H Network Module (optical loop type) 1 QJ71LP21-25 QJ71LP21-25 MELSECNET/H Network Module (optical loop type) 1 QJ71LP21S-25 QJ71LP21S-25 MELSECNET/H Network Module (optical loop type, with external power supply function) 1 QJ71LP21G QJ71LP21G MELSECNET/H Network Module (optical loop type) 1 QJ71LP21GE QJ71LP21GE MELSECNET/H Network Module (optical loop type) 1 QJ71BR11 QJ71BR11 MELSECNET/H Network Module (coaxial bus type) 1 F-type connector 1 QJ72LP25-25 QJ72LP25-25 MELSECNET/H Network Module (optical loop type) 1 QJ72LP25G QJ72LP25G MELSECNET/H Network Module (optical loop type) 1 QJ72LP25GE QJ72LP25GE MELSECNET/H Network Module (optical loop type) 1 QJ72BR15 QJ72BR15 MELSECNET/H Network Module (coaxial cable bus type) 1 F-type connector (A6RCON-F) 1 REMARK For the coaxial bus system, terminal resistors (75 Ω) are required in the network terminal stations. Terminal resistors are not included with the QJ71BR11, QJ72BR15; they must be purchased separately. For a list of the model and how to use the terminal resistors, refer to Section A - 13 A - 13

16 1 OVERVIEW 1 1 OVERVIEW The MELSECNET/H system includes the following 2 types of networks: 1) PLC to PLC network for communications between a control station and normal stations 2) Remote I/O network for communications between a remote master station and remote I/O stations This is the manual to read when building a remote I/O network for MELSECNET/H systems (hereafter called MELSECNET/H). If you are building a MELSECNET/H network for PLC to PLC network, please refer to the Q-corresponding MELSECNET/H network system reference manual. (PLC to PLC network) (SH ) POINT The Q00JCPU, Q00CPU and Q01CPU cannot configure a remote I/O network in a MELSECNET/H network system. 1.1 Overview REMARK The previous network, called MELSECNET/10H is now called MELSECNET/H. The MELSECNET/H remote I/O network system has more functionality and capacity than the former network system, MELSECNET/10 network system (hereafter referred to as MELSECNET/10). As the MELSECNET/H remote I/O network adopts the same module mounting method as the usual one (mounting I/O modules and intelligent function modules onto the main base unit/expansion base unit), each module mounted on the remote I/O stations can be handled in the similar way as the basic one. In addition, the applicability to the MELSECNET/10 remote I/O network has been further enhanced so that the FA system can be easily configured. In the MELSECNET/H remote I/O network optical loop system, the communication speed can be set to 25 Mbps or 10 Mbps. MELSECNET/H 1: QJ71LP21-25, QJ71LP21S-25, QJ72LP25-25 only Control station (MELSECNET/10 mode) QCPU GX Developer Network system Communication speed Optical loop 1 25 Mbps Optical loop, coaxial cable 10 Mbps Remote master station Control station (MELSECNET/H mode) QCPU normal station QCPU normal station MELSECNET/H (10Mbps) PLC to PLC network MELSECNET/H (25Mbps) PC network QnACPU normal station AnUCPU normal station QCPU normal station MELSECNET/H (25Mbps) remote I/O network Remote I/O station Remote I/O station Remote I/O station MELSECNET/H (10Mbps) remote I/O network QCPU normal station Remote I/O station GX Developer

17 1 OVERVIEW POINT (1) Use QCPU for MELSECNET/H remote I/O network PLC selection time. (2) Remote I/O networks and PLC to PLC networks cannot be mixed on the same MELSECNET/H network. Always build separate networks. 1 (3) Only MELSECNET/H network modules can be connected to a MELSECNET/H remote I/O network. They cannot be mixed with MELSECNET/10 network modules (AJ72LP25, A1SJ72QLP25, etc.). The following table shows the types of networks the CPU modules can be connected to. CPU module Type of networks Network to be connected that can be used MELSECNET/10 MELSECNET/H with CPU PLC to PLC network Remote I/O network PLC to PLC network Remote I/O network QCPU AnUCPU QnACPU MELSECNET/H (10 Mbps) (MELSECNET/10 mode) MELSECNET/H (25 Mbps) MELSECNET/10 MELSECNET/10 (MESLECNET/H mode, MELSECNET/H Extended mode) : Can be used : Cannot be used 1.2 Features The MELSECNET/H remote I/O network has the following features. (1) Achievement of a high-speed communication system (a) High-speed data sending at a communication rate of 10 Mbps/25 Mbps is possible. (25Mbps is available for only the optical loop type QJ71LP21-25, QJ71LP21S-25 and QJ72LP25-25.) (2) Large-scale and flexible system configuration (a) (b) (c) The link device has a larger capacity: points for the link relay (LB) and points for the link register (LW). (See Section 2.1.3, "Available device range settings.") A maximum of 4096 I/O points can be set for each remote I/O station. The link points between a remote master station and a remote I/O station can be set up to 1600 bytes. The link points of up to 2000 bytes can be set between a master station and a sub-master station on a multiplexed remote I/O network. Either of the following systems can be chosen: the optical loop system (maximum total extension of 30 km (98430 ft.)) which has a long station-tostation distance and total distance, and is resistant to noise, or the coaxial bus system (maximum total extension of 500 m ( ft.) which can easy be wired. (See Section 3.1, "Performance Specifications.")

18 1 OVERVIEW (d) (e) (f) The following functions facilitate network connection: 1) Any station to be connected in the future can be specified as a reserved station. Specifying a station not actually connected as a reserved station prevents a communication error. (See Section "Common parameter.") 2) It is not necessary to connect stations in order of the station Nos. in the network. (See Section 4.2.1, ) The parameters can be written to remote I/O modules using GX Developer in the same way as to CPU modules. The parameters of the remote I/O module can be used to change the detailed settings (response time, error output mode) for I/O modules on a remote I/O station, intelligent function module switch settings and I/O allocations, and remote password settings. (Refer to Section 5.2 "Remote I/O Station Parameter Settings".) Setting up a master station (DM R ) and a sub-master station (DSM R ) on the multiplexed remote I/O network allows the sub-master station to take over the control of remote I/O stations (R) in case of the master station's failure. (The QnPHCPU should be used for the multiplexed remote master station and sub-master station.) By making a parameter setting, the multiplexed remote sub-master station can continue the control of the remote I/O stations even if the master station has recovered to normal and rejoined to the system. (Setting for the recovered master station to control the remote I/O stations is also available.) (Refer to Section 7.10 "Multiplex Remote Master Function (QnPHCPU Only)".) Multiplexed remote master station (DMR) Multiplexed remote sub-master station (DSMR) Remote I/O station (R) Remote I/O station (R) Remote I/O station (R)

19 1 OVERVIEW (g) The redundant system uses the multiplex remote master function to control I/O modules and intelligent function modules. (The QnPRHCPU should be used in the redundant system.) If the multiplexed master station (control system) fails, the multiplex remote master function will switch the master station from "control system" to "standby system". At this time, the multiplexed remote sub-master station is switched from "standby" to "control", continuing the remote I/O control. The sub-master station (control system) that is controlling the remote I/O stations will keep its control even if the master station (standby system) has returned to normal status. (Refer to Section 7.11 "Multiplex Remote Master Function for Redundant System (QnPRHCPU Only).) Multiplexed remote master station (DMR) Control system Standby system Multiplexed remote sub-master station (DSMR) Standby system Control system Tracking cable Remote I/O station (R) Remote I/O station (R) Remote I/O station (R) (h) A maximum of 7 extension base units can be connected to the remote I/O module (eight base units including the main base unit), allowing the installation of up to 64 modules. The maximum overall length of extension cables is 13.2m, ensuring a flexible layout of extension base units

20 1 OVERVIEW (3) Providing versatile communication service (a) Reading and writing of data for an intelligent function module that has been mounted to a remote I/O station can be easily performed. There are four methods available for reading and writing. 1) Use GX Configurator to make the initial settings and automatic refresh settings in the intelligent function module parameters, and write them into the remote I/O module in the remote I/O station. By refreshing the intelligent function module data to the link register W of the remote I/O module in the auto refresh settings, the remote master station can read/write refreshed data by cyclic transmission. QCPU Master module Link register W Link register LW Refresh Remote master station QCPU LW Intelligent function module parameters Initial settings Automatic refresh settings GX Configurator Remote I/O station Intelligent function module Remote I/O module Intelligent function module Link register W Buffer memory Refresh 2) Special link instructions can be used to directly read from or write to the buffer memory of the intelligent module. REMFR instruction: Reads data from the buffer memory of the remote I/O station intelligent function module. REMTO instruction: Writes data to the buffer memory of the remote I/O station intelligent function module. Remote master station QCPU REMTO Remote I/O station Intelligent function module QCPU Z.REMTO Network module Network module REMTO Intelligent function module Buffer memory

21 1 OVERVIEW 3) By refreshing the intelligent function module data into the remote I/O module's data register D by the automatic refresh setting of the intelligent function module parameters, the remote master station can read/write data from/to the data register D with READ or WRITE instruction. WRITE Remote master station Remote I/O station QCPU Intelligent function module QCPU JP.WRITE Master station Intelligent function module parameters Initial settings Automatic refresh settings GX Configurator WRITE Remote I/O module Data register D Refresh Intelligent function module Buffer memory QCPU Master station Link register W Link register LW Refresh 4) The automatic refresh setting of the intelligent function parameters enables the intelligent function module data to be refreshed into the remote I/O module's data register D. By refreshing the data register D to the link register W with the parameter of the remote I/O module, the remote master station can read/write the intelligent function module data by cyclic transmission. This method has the advantage that the intelligent function module parameters created for QCPU can be applied to the remote I/O module without making any modifications. Remote master station Remote I/O station QCPU Intelligent function module LW Intelligent function module parameters Initial settings Automatic refresh settings GX Configurator Remote I/O module Data register D Link register W Refresh Intelligent function module Buffer memory Refresh I50 Interrupt sequence program IRET MAIN (b) CPU module The interrupt sequence program of the host's CPU module can be started up using the event issue function. This function reduces the response time of the system and enables real-time data reception. (See Section 7.7, "Starting Up the Interrupt Sequence Program.") Normal sequence program Conditions matched Network module Condition check Interrupt condition parameters Relay information Register data Network status MELSECNET/H Cyclic transmission END

22 1 OVERVIEW (4) Enhanced RAS functions (Refer to Section "RAS functions") (a) (b) (c) (d) (e) (f) (g) When a faulty station recovers and can resume normal operation, it automatically returns to the network to resume the data communication using the automatic return function. By using the loopback function (the optical loop system), it is possible to continue data transmission among operational stations by disconnecting faulty areas such as a part of the network where there is a cable disconnection, a faulty station, etc. By using the station detach function (coaxial bus system), even when some of the connected stations are down due to power off, etc., the normal communication can be continued among other operational stations. The network module can continue the transient transmission even if an error that stops the CPU module while the system is operating occurs. It is possible to check the time when a transient error occurred. By mounting 2 power supply modules on a remote I/O station, either of them can be replaced without powering off the station. (Redundant power supply on remote I/O station) The redundant power supply base unit is required for mounting 2 power supply modules. When an input module, an output module or an intelligent function module mounted on a remote I/O station fails, the faulty module can be replaced without stopping the system operation. (Online module change) Online module change is available for Q series I/O modules and function version D or later analog-to-digital and digital-to-analog converter modules, temperature input modules and temperature control modules. REMARK The following faults make the RAS functions valid. Break in cable Power-off of slave station Network setting error Fault detectable by self-diagnostics of CPU module If the network module has become faulty, the RAS functions may not be activated depending on the fault. (5) Control of external connection to remote I/O stations (refer to Section 7.12) Setting a remote password for a remote I/O station restricts connections from the outside via an Ethernet interface module or serial communication module. (Remote password)

23 1 OVERVIEW (6) Strengthening network functions (a) Intelligent function modules mounted to remote I/O stations can be diagnosed using the GX Developer system monitor. Intelligent function modules mounted to remote I/O stations can be diagnosed using the system monitor even if it is done via the network using a GX Developer connected to a remote master station or even if the GX Developer is directly connected to a remote I/O station. Remote I/O station system monitor GX Developer QCPU Remote master station Select Q64AD Remote I/O station Remote I/O station Q64AD system monitor GX Developer Q64AD GX Developer When the network seems to be faulty, it can be diagnosed through GX Developer connected to the remote master station or remote I/O station. (b) If the GX Developer is connected to a remote I/O station, it will not affect the system operating so user program network function testing can be done online. It shuts out input (X) from the input module on the remote I/O station and can turn input (X) on or off using the GX Developer test. This allows testing of the remote master station input program to be performed. In addition, it shuts of output (Y) form the remote master station and can turn remote I/O station output (Y) on and off using the GX Developer test. This allows testing of the wires for the output module on the remote I/O station to be performed. (7) Increased ease of network configuration in combination with Q corresponding GX Developer (a) (b) The network parameters can easily be set by visualising pull-down menus, dialogue boxes, etc. The settings of network Nos., group numbers and operation modes have been simplified so that these values can be designated only through software settings. (Network parameters) Pull-down menu Abbreviations

24 1 OVERVIEW 1.3 Abbreviations Used in the Text, Tables and Diagrams of This Manual (1) Abbreviations Abbreviations MR R DM R DSM R Name Remote master station Remote I/O station Multiplexed remote master Multiplexed remote sub-master (2) Marking format Station number (1 to 64) Abbreviation Network No. (1 to 239) [Example] 1) Network No. 3 and remote master station 3MR Station number "0" is not attached to the remote master station. 2) Network No. 5, remote I/O station, station number 3 5R3 3) Network No. 7, Multiplexed remote sub-master, station number 4 7DSM R Functions Added/Changed with Upgrade to Function Version D The following table lists the additional/altered functions for network modules of function version D. Function Function version Description Reference Multiplexed remote I/O network for redundant system Power supply redundancy on remote I/O station Online module change on remote I/O station Remote password for remote I/O station Function version D Function version D Function version D Function version D Allows construction of a multiplexed remote I/O network that includes the redundant system as the master station. Allows the construction of the system that includes a remote I/O station in which 2 power supply modules are mounted for power supply redundancy. Allows the faulty I/O module or intelligent function module on a remote I/O station to be replaced online while the remote I/O station is running. Limits the connection made from GX Developer via the Ethernet module or serial communication module mounted on a remote I/O station, by setting the password. Section 7.11 Section (8) Section (9) Section

25 2 SYSTEM CONFIGURATION 2 SYSTEM CONFIGURATION This introduces a system comprised of remote I/O networks. POINT (1) Remote I/O networks and PLC to PLC networks cannot be mixed on the same MELSECNET/H network. Always build separate networks. (2) Only MELSECNET/H network modules can be connected to a MELSECNET/H remote I/O network. They cannot be mixed with MELSECNET/10 network modules (AJ72LP25, A1SJ72QLP25, etc.) Single Remote I/O Networks Configuration (1) Optical loop system Up to 64 remote I/O modules can be connected to a remote master station. Always set the station number of the remote master station to 0. Station number 0 (remote master station) Station number 1 (remote I/O station) Station number 2 (remote I/O station) Power supply QCPU QJ71 LP21 Power supply QJ72 LP25 I/O I/O Power supply QJ72 LP25 I/O I/O Optical fiber cable Power supply QJ72 LP25 I/O I/O Station number 64 (remote I/O station) Power supply QJ72 LP25 I/O I/O Station number 4 (remote I/O station) Power supply QJ72 LP25 I/O I/O Station number 3 (remote I/O station) (2) Coaxial cable bus system Up to 32 remote I/O stations can be connected to a remote master station. Always set the station number of the remote master station to 0. Station number 0 (remote master station) Station number 1 (remote I/O station) Station number 32 (remote I/O station) Power supply QCPU QJ71 BR11 Power supply QJ72 BR15 I/O I/O Power supply QJ72 BR15 I/O I/O Terminator (Sold separately) Coaxial cable Terminator (Sold separately)

26 2 SYSTEM CONFIGURATION Setting items (1) Table 2.1 shows the setting items on the master module of the remote master station (MR) and the parameter setting items on GX Developer. Table 2.1 Remote master station setting items 2 Setting items Remote master station (MR) Reference Network module switch STATION NO. 0 Section MODE Section Parameter setting on GX Developer MELSECNET/H Ethernet module count setting Network type MELSECNET/H (Remote master station) Section Starting I/O No. Section Network No. Section Total stations Section Group No. Mode Section Common parameters Section Auxiliary setting Section Station specific parameters Refresh parameters Section Valid module during other station access Section Interlink transmission parameters Routing parameters 1 : Always set, : Default setting, : Set as needed, : No need to set 1: Refer to the "Q Corresponding MELSECNET/H Network System Reference Manual (PLC to PLC Network) (SH )"

27 2 SYSTEM CONFIGURATION Available device ranges (2) Table 2.2 shows the setting items on the remote I/O module of the remote I/O station (R) and the parameter setting items on the GX Developer. Table 2.2 Remote I/O station setting items Setting items Remote I/O station (R) Reference Network module switch STATION NO. 1 to 64 Section MODE Section Parameter setting on GX Developer PLC system setting 2 PLC RAS setting 2 I/O assignment 2 Operation setting Section Ethernet setting 3 CC-Link setting 4 Remote password setting Section 7.12 GX Configurator setting Initial setting 5 Auto refresh setting 5 : Always set, : Default setting, : Set as needed, : No need to set 2 : Refer to "QCPU User's Manual (Functional Explanation: Program Fundamentals) (SH ENG)". 3 : Refer to "Q Corresponding Ethernet Interface Module User's Manual (Basic) (SH )". Note that interrupt setting is not available. 4 : Refer to "CC-Link System Master/Local Module User's Manual (SH E)". Note that interrupt setting is not available. 5 : Refer to the user's manual of the corresponding intelligent function module. The remote I/O network can use the following device ranges within each network module. These device ranges indicate the remote master station. Device Range setting Other LB 0H to 3FFFH (16384 points) LW 0H to 3FFFH (16384 points) LX LY 0H to 1FFFH (8192 points) 0H to 1FFFH (8192 points) The device range (excluding that of I/O module mounted on the host station) should be assigned to each network module H (4096) 2000H 3000H 3FFFH (8192) (12288) (16383) CPU module Network module B/W LB/LW Extended 1 CPU module Network module X/Y LX/LY Actual I/O Actual I/O : Available device range 1: Expandable by changing from [PLC parameters] - [Device settings]

28 2 SYSTEM CONFIGURATION 2.2 Multiple Remote I/O Network (QnPHCPU Only) Configuration A multiplexed remote I/O network system includes a multiplexed remote master station and a multiplexed remote sub-master station. The multiplexed remote sub-master station takes control of remote I/O stations when the multiplexed remote master station fails. Always assign station No. 0 to the multiplexed remote master station. It is allowed to assign any of station number 1 to 64 to the multiplexed remote submaster station, provided that the number does not overlap with that of remote I/O station. 63 remote I/O stations can be connected in an optical loop system, 31 stations in a coaxial bus system. POINT Only the QnPHCPU is the CPU module that works as a multiplexed remote master station and multiplexed remote sub-master station. The Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU, Q12PRHCPU and Q25PRHCPU do not work as a multiplexed remote master station and multiplexed remote sub-master station. Station No. 0 (Multiplexed remote master station) Station No. 1 (Multiplexed remote sub-master station) Station No. 2 (Remote I/O station) Power supply QnPH CPU QJ71 LP21 Power supply QnPH CPU QJ71 LP21 Power supply QJ72 LP25 I/O I/O Optical fiber cable Power supply QJ72 LP25 I/O I/O Station No. 64 (Remote I/O station) Power supply QJ72 LP25 I/O I/O Station No. 4 (Remote I/O station) Power supply QJ72 LP25 I/O I/O Station No. 3 (Remote I/O station) Up to 63 remote I/O stations can be connected in an optical loop system. Up to 31 stations can be connected in a coaxial bus system